Abstract This article contains the text of a letter from the Hungarian and German king, Sigismund of Luxemburg, to the commune of Caffa, a Genoese colony in Crimea. In his struggle against Venice, the king hoped for the help of Genoa, which competed with the Republic of Venice in the Levantine trade. To undermine Venetian trade routes, Sigismund hoped to both establish contact with the Horde’s khan, Jalal ad-Din, with the mediation of Caffa’s administration, and to restore the transit trade of expensive Oriental goods from China to the Danube and further into Hungary and Germany. To this end, an official Hungarian embassy was sent to Caffa in 1412. The letter rather meagerly reflects the opinion of the king regarding the distant Horde and ...